Improvement in ore-washers



T. B MGOONAUGHEY. Ore-Washer.

"P t ntedwApril29,1879

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MPEIERS, FHOTO-LITNOGRAPNER. WASHINGTON n C UNITED STATES PATENT OFFICE.

THOMAS B. MCGONAUGHEY, OF NEWARK, DELAWARE.

IMPROVEMENT IN ORE-WASHERS.

Specification formingpart of Letters Patent No. 214,783, dated April 29, 1879 application filed August 27, 1878.

To all whom it may concern:

Be it known that I, THOMAS B. MCOON- AUGHEY, of Newark, New Castle county, State of Delaware, have invented certain new and useful Improvements in Ore-Washers; andI hereby declare the same to be fully, clearly, and exactly described as follows, reference being had to the accompanying drawings, in which- Figure 1 is a vertical longitudinal sectional view of the device on line 00 m of Fig. 2, and Fig. 2 is a plan view of the machine.

My present invention consists in an improvement upon that forming the subject of Letters Patent No. 161,697, granted to me April 6, 1875; and in order that it may be clearly understood without referring to the said Letters Patent, the following is given as a brief description of theconstruetion and" operation of the patented device. It consists of a stationary inclined trough, having a dam at its lower end and a shaking-screen at its upper one. Beyond the screen an endless apron is suitably mounted upon rollers. Above the trough are suspended a series of bars lengthwise of the same, from which bars a number of shovels depend, being of a length to admit of their nnattached'ends resting upon the bottom of the trough. Mechanism is provided for swinging the bars referred to, for agitating the screen, and for moving the apron. The ore to be treated is delivered upon the i lower portion of the trough, through which a stream of water is at the same time allowed to flow from above, carrying the lighter portions of the ore down thetrough and over the dam. The heavier portions are moved by means of the reciprocating shovels up the trough with its longitudinal bars and pivoted shovels.

In my patented machine these bars are suspended by links from a frame-work over the trough, and reciprocate in lines which are consequence, the mass of ore is, as it were,

pushed bodily up the trough.

My present invention consists in attaching the shovels to bars pivoted at one end upon a crank-shaft and supported at the other by vertical arms, whereby the mass of ore is turned over and fresh portions of it exposed to the current of water.

In the accompanying drawings, A represents a suitable frame, upon which is mounted a trough, B, inclined as shown, and having at its lower end a dam, E. A metallic lining, H, covers the interior of the trough. Upon a cross-rod, F, at the lower end of the trough are mounted the arms F, which sustain the ends of the shovel-bars 0. To these are pivoted a series of shovels, D, in the manner shown, their unattached ends pointing up the trough and resting upon its bottom. Between uprights at the upper end of the trough extends a shaft, G, upon which is formed, or to which are attached, a series of cranks, g g, to which the upper ends of the bars 0 G are se-, cured. These cranks project in different directions from the axis of the shaft, so that no two contiguous shovel -bars complete their stroke simultaneously. Upon the shaft G is mounted a pulley, I for the driving-belt.

It will be observed that when the shaft G is caused to revolve one end of each of the shovel-bars reciprocates in the are of a circle whose radius is the arm F, while the other has a continuous circular motion, in conse- I claim as new, and desire to secure by Letters Patent, is-- In combination with the trough B, the bars 0, having shovels D, the said bars being supported at one end upon arms F, and directly attached at the other to the crank-shaft G, as set forth.

THOS. B. MOCONAUGHEY.

Witnesses:

JAMEs SPRINGER, JAMES H. KAY. 

